Unrelated to the site, but about the patents: How can a specific games console, like the Nintendo 64, be patented? The name of the product, and maybe some bran

Unrelated to the site, but about the patents: How can a specific games console, like the Nintendo 64, be patented? The name of the product, and maybe some brand-specific design elements, is a registered brand, sure. But a patent is for an invention, and it's not like a specific games console is a new invention - just a variant on the existing invention "games console"?